1123001013 has 16 divisors (see below), whose sum is σ = 1566005760. Its totient is φ = 714480624.

The previous prime is 1123000999. The next prime is 1123001027. The reversal of 1123001013 is 3101003211.

It is an interprime number because it is at equal distance from previous prime (1123000999) and next prime (1123001027).

It is not a de Polignac number, because 1123001013 - 2²⁹ = 586130101 is a prime.

It is a super-2 number, since 2×1123001013² = 2522262550398052338, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1123001013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123001513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12198 + ... + 48936.

It is an arithmetic number, because the mean of its divisors is an integer number (97875360).

Almost surely, 2^1123001013 is an apocalyptic number.

It is an amenable number.

1123001013 is a deficient number, since it is larger than the sum of its proper divisors (443004747).

1123001013 is a wasteful number, since it uses less digits than its factorization.

1123001013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37208.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1123001013 is about 33511.2072745820. The cubic root of 1123001013 is about 1039.4255373418.

Adding to 1123001013 its reverse (3101003211), we get a palindrome (4224004224).

The spelling of 1123001013 in words is "one billion, one hundred twenty-three million, one thousand, thirteen".